Roofers install, repair and replace flat and sloped roofs. They work with membrane roofing systems that consist of a variety of materials with different application methods.
Essential Skills Requirements:
Safety-related Activities
Ability to read instructions and warnings written on signs and labels, e.g. read labels on equipment to learn about electrical shock hazards. (Complexity: 1)
Ability to read workplace safety materials, e.g. read Material Safety Data Sheets (MSDS) to understand the chemical composition and hazards of products, such as adhesives. (Complexity: 1)
Ability to read instructions about the use, maintenance and storage of personal protective equipment such as fall arrest systems. (Complexity: 2)
Document Use
Ability to observe symbols, icons and signs, e.g. scan signs at new job sites to identify workplace hazards and safety equipment. (Complexity: 1)
Ability to write incident reports, e.g. complete incident reports to describe events leading up to accidents. (Complexity: 2)
Ability to evaluate the safety of equipment and the severity of workplace hazards. (Complexity: 2)
Ability to understand written instructions about the set-up, operation and maintenance of hot process, propane-fueled equipment. (Complexity: 2)
Ability to understand written instructions for the set-up, operation and maintenance of equipment such as pneumatic and powder-actuated tools. (Complexity: 2)
Ability to read installation manuals and warranty agreements to ensure work is compliant and roofing materials are installed properly. (Complexity: 3 or higher)
Ability to understand and interpret building and fire code regulations to get information about mandatory work procedures and legal requirements that affect roofing jobs. (Complexity: 3 or higher)
Document Use
Ability to locate and enter data on labels, e.g. locate mixing ratios and drying times on the labels of products, such as sealers. (Complexity: 1)
Ability to locate information such as dimensions and construction procedures using basic scale and assembly drawings. (Complexity: 1)
Ability to identify locations and orientations of parts in assembly drawings of equipment such as bitumen pumps and piping. (Complexity: 2)
Ability to use a variety of complex plan, elevation, detail, elevation and section drawings, e.g. study complex detail drawings to determine construction techniques. (Complexity: 3 or higher)
Ability to choose tools, methods and products for projects, e.g. consider project specifications, building codes and the availability of time and labour. (Complexity: 1)
Ability to evaluate the quality of work performed by considering factors such as the appearance and structural integrity of completed projects. (Complexity: 1)
Ability to evaluate the condition and performance of tools and equipment. (Complexity: 2)
Ability to evaluate work projects by considering factors such as efficiencies, timelines, costs and the quality of work performed. (Complexity: 3 or higher)
General Administrative Duties
Ability to read short text entries on forms, such as work orders and invoices. (Complexity: 1)
Ability to read notices and bulletins, e.g. read notices from workers' compensation boards to learn about workplace hazards and incidents. (Complexity: 2)
Ability to read magazine and website articles to stay current on industry trends and broaden their knowledge of techniques and materials. (Complexity: 3 or higher)
Document Use
Ability to locate data in a variety of complex tables, e.g. locate data, such as dimensions, tolerances, coefficients, identification numbers and quantities, in complex specification tables. (Complexity: 2)
Ability to locate data such as identification numbers, specifications, times and quantities in moderately complex tables. (Complexity: 2)
Ability to complete complex entry forms, e.g. complete forms, such as building permits, by entering data, such as dates, times, durations, quantities and specifications. (Complexity: 3 or higher)
Ability to write project details on estimate sheets, change orders and work orders, e.g. explain the procedures for projects on job estimates. (Complexity: 1)
Ability to write reminders and short notes to customers and co-workers, e.g. write short notes to inform customers of progress made. (Complexity: 1)
Oral Communication - Listening
Ability to understand short spoken statements such as a simple instruction or question. (Complexity: 1)
Ability to understand moderately complex spoken statements such as instructions involving multiple steps. (Complexity: 2)
Oral Communication - Speaking
Ability to ask simple questions and explain simple thoughts, instructions and opinions using appropriate language. (Complexity: 1)
Ability to explain moderately complex thoughts, instructions and opinions using appropriate tone and language. (Complexity: 2)
Use of Mathematics
Whole Numbers
Ability to add, subtract, multiply and divide whole numbers. (Complexity: 2)
Ability to add, subtract, multiply and divide fractions. (Complexity: 2)
Ability to add, subtract, multiply and divide decimals. (Complexity: 2)
Percents and Mixed Operations
Ability to use percent to locate numbers; add, subtract, multiply and divide signed numbers; complete mixed operations with whole numbers, fractions, percents and decimals. (Complexity: 2)
Data Analysis
Ability to calculate and use totals, sub-totals and basic summary measures like averages and rates; perform proportional calculations. (Complexity: 2)
Geometry - Basic Skills
Ability to analyze and draw lines and line segments; use coordinates to locate points in a plane; calculate angles; use concepts such as parallelism to solve problems. (Complexity: 2)
Geometry - Plane Figures
Ability to calculate perimeters, areas and circumferences; analyze angles and distances in triangles, rectangles and circles; analyze complex shapes into constituent plane figures. (Complexity: 2)
Geometry - Solids
Ability to calculate volumes of rectangular solids, cylinders and prisms; analyze complex volumes into constituent regular solids. (Complexity: 2)
Geometry - Advanced Tasks
Ability to analyze angles and distances in plane figures; calculate areas of other polygons; use theorem to solve problems; calculate areas and volumes of objects such as spheres, pyramids and cones. (Complexity: 2)
Ability to measure things such as distances, weights, volumes, temperatures and angles; use and convert between Metric and Imperial measurement units. (Complexity: 2)
Ability to construct and solve equations with one to three different variables and use common formulas. (Complexity: 2)
Ability to use trigonometry to identify and calculate the unknown lengths and angles of triangles. (Complexity: 2)